Argyropelecus hemigymnus

Argyropelecus hemigymnus
Conservation status
	; Least Concern (IUCN 3.1)[1]
Scientific classification
Kingdom:	Animalia
Phylum:	Chordata
Class:	Actinopterygii
Order:	Stomiiformes
Family:	Sternoptychidae
Subfamily:	Sternoptychinae
Genus:	Argyropelecus
Species:	A. hemigymnus
Binomial name
	Argyropelecus hemigymnus; Cocco, 1829

Argyropelecus hemigymnus, the half-naked hatchetfish, short silver hatchetfish or spurred hatchetfish, is a deep-sea hatchetfish of the genus Argyropelecus found mesopelagically in the Atlantic, Indian, and Pacific Oceans as well as in the Mediterranean Sea.[1][2] It is a small species rarely exceeding 38 millimetres (1.5 in) standard length.[3] It feeds on zooplankton, particularly ostracods and copepods.[4][5] Sexual maturation occurs at length of about 22 mm, and adult males have more developed olfactory organs than females, i.e. the species is sexually dimorphic.[6]

References

Harold, A.S. (2010). "Argyropelecus hemigymnus". IUCN Red List of Threatened Species. 2010: e.T154998A4687037. Retrieved 24 April 2020.
Froese, Rainer and Pauly, Daniel, eds. (2019). "Argyropelecus hemigymnus" in FishBase. December 2019 version.
Baird, R. C. (1971). "The systematics, distribution, and zoogeography of the marine hatchetfishes (family Sternoptychidae)". Bulletin of the Museum of Comparative Zoology. 142: 1–128.
Merrett, N. R.; Roe, H. S. J. (1974). "Patterns and selectivity in the feeding of certain mesopelagic fishes". Marine Biology. 28 (2): 115. doi:10.1007/BF00396302.
Hopkins, Thomas L.; Ronald C. Baird (1985). "Feeding ecology of four hatchetfishes (Sternoptychidae) in the eastern Gulf of Mexico". Bulletin of Marine Science. 36 (2): 260–277.
Baird, R. C.; G. Y. Jumper; E. E. Gallaher (1990). "Sexual dimorphism and demography in two species of oceanic midwater fishes (Stomiiformes: Sternoptychidae) from the eastern Gulf of Mexico". Bulletin of Marine Science. 47: 561–566.

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[IUCN-1] Harold, A.S. (2010). "Argyropelecus hemigymnus". IUCN Red List of Threatened Species. 2010: e.T154998A4687037. Retrieved 24 April 2020.

[FishBase-2] Froese, Rainer and Pauly, Daniel, eds. (2019). "Argyropelecus hemigymnus" in FishBase. December 2019 version.

[Baird-3] Baird, R. C. (1971). "The systematics, distribution, and zoogeography of the marine hatchetfishes (family Sternoptychidae)". Bulletin of the Museum of Comparative Zoology. 142: 1–128.

[4] Merrett, N. R.; Roe, H. S. J. (1974). "Patterns and selectivity in the feeding of certain mesopelagic fishes". Marine Biology. 28 (2): 115. doi:10.1007/BF00396302.

[5] Hopkins, Thomas L.; Ronald C. Baird (1985). "Feeding ecology of four hatchetfishes (Sternoptychidae) in the eastern Gulf of Mexico". Bulletin of Marine Science. 36 (2): 260–277.

[6] Baird, R. C.; G. Y. Jumper; E. E. Gallaher (1990). "Sexual dimorphism and demography in two species of oceanic midwater fishes (Stomiiformes: Sternoptychidae) from the eastern Gulf of Mexico". Bulletin of Marine Science. 47: 561–566.